“Our information at this stage suggests that whilst there are no specific techniques which are not supported in the new hardware environment, any non-optimal or inefficient coding practices will suffer more dramatic performance hits running in the Rosetta emulation mode,” he adds, but notes that performance “is adequate for moderate requirements with stand-alone applications.” Cologon points out that FileMaker Server does not run under Rosetta, so server-based applications won’t run on the new Macs. They will run non-optimally in that environment, but will nevertheless be fully functional.”
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Ray Cologon, lead developer at NightWing Enterprises and winner of the 2005 FileMaker Excellence Award for Leadership and Technical Excellence in FileMaker Pro says “Our testing at this stage indicates that applications will run without modification in Rosetta.
Similarly, applications created using FileMaker generally work unchanged as FileMaker itself runs under Rosetta.
ISlayer has also released iStat, a self-contained universal binary application built on the same code base as its series of system-monitoring widgets. ISlayer had to rebuild ten of its 12 widgets, but the job was done in one night: “it was pretty painless.” “Unless you have inline assembler code, it’s quite an easy job,” because there’s no reason to have written the code using anything other than Cocoa, and Everything else happens automatically at runtime through WebKit, explains Edwards. Only those that need to access an application directly, receive distributed notifications or read disk files require plug-ins. Simpler widgets written in JavaScript run unchanged on Intel as they are interpreted. Marc Edwards, one half of widget developer iSlayer, says that because Dashboard is itself a universal binary, widgets that use plug-ins have to be recompiled, but “all you need to do is recompile and check the ‘compiler for Intel’ box.” The best-case scenario is that a developer ticks the box for x86 code, rebuilds the project and gets a universal binary with no further effort.įor some developers, the process was as straightforward as Apple promised. Importantly, Xcode can generate code for PowerPC, x86 or both.
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This time around, the names have changed but the ideas stay the same: The Rosetta emulator provides a way of running PowerPC code on an Intel-based Mac, while ‘universal binaries’ package PowerPC and x86 code within one application.Īpple’s Xcode development system ships with Mac OS X, and the latest version with support for universal binaries is available for free download from the company’s Web site along with information to assist with the migration process. From the user’s perspective, that change was simplified thanks to the operating system’s provision of an emulator for 680×0 code and a scheme for parcelling 680×0 and PowerPC code into a single application (‘fat binaries’). Switching to a different CPU can be a painful process, but Apple has been through it before when it dropped Motorola’s 680×0 family in favour of the PowerPC.
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Developing Applications for Intel-based MacsĪ new processor architecture has massively boosted Mac power and capabilities, but what does it mean for developers? Stephen Withers investigates how to port your Mac apps.Ī new processor architecture has massively boosted Mac power and capabilities, but what does it mean for developers? Stephen Withers investigates how to port your Mac apps to the new platform.
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